INIS
cretaceous period
100%
fossils
40%
zones
35%
england
32%
correlations
31%
stratigraphy
31%
france
30%
chalk
29%
clays
24%
texas
22%
asteroids
21%
seas
21%
carbon isotopes
21%
origin
20%
europe
17%
morocco
17%
foraminifera
16%
plates
16%
eocene epoch
16%
usa
16%
surfaces
15%
shells
15%
sea level
14%
water
14%
morphology
13%
control
12%
sediments
12%
variations
12%
united kingdom
11%
germany
11%
data
10%
distribution
10%
chalks
10%
taxonomy
10%
geochemistry
10%
spain
9%
levels
9%
oceans
9%
carbonates
8%
deposits
8%
tunisia
7%
stars
7%
comparative evaluations
7%
resolution
7%
india
7%
depth
7%
africa
6%
echinoderms
6%
units
6%
carbon 13
6%
Earth and Planetary Sciences
Cenomanian
38%
Ammonite
38%
United Kingdom
32%
England
28%
Stratigraphy
23%
Turonian
21%
Upper Cretaceous
21%
France
20%
Albian
19%
Late Cretaceous
19%
Campanian
19%
Carbon 14
18%
Texas
18%
Morocco
16%
Maastrichtian
16%
Sea Level
14%
Biostratigraphy
14%
Fossil Record
14%
Germany
14%
Deep Sea
13%
Eocene
13%
Nannofossil
13%
Stratotype
12%
New Species
12%
Paleogene
11%
Planktonic foraminifera
11%
United States of America
11%
Lower Cretaceous
10%
Santonian
10%
United Kingdom
9%
Tithonian
9%
Timescale
9%
Europe
9%
Spain
8%
Late Jurassic
8%
Morphology
8%
Phylogenetics
7%
English
7%
Tunisia
7%
Sequence Stratigraphy
7%
Calcite
7%
India
6%
Petrography
6%
Early Jurassic
6%
Kimmeridgian
5%
Gaps (Geology)
5%
Cyclostratigraphy
5%
Locale
5%
Tectonics
5%
Foraminifera
5%